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MD5150
Public Made by Adomby adom
Shanghai Mingda Microelectronics Linear Voltage Regulators (LDO), SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownMD5150
Shanghai Mingda Microelectronics · Linear Voltage Regulators (LDO) · SOT-89-3
MD5150 from Shanghai Mingda Microelectronics, in a SOT-89-3. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND | power_in | Ground; also the return for the internal COUT auto-discharge switch (about 450 ohm typ.) connected to VOUT when the output is disabled. |
| 2 | VIN | power_in | Input supply, 1.5V to 7V operating range (absolute maximum 8.0V), with a recommended input capacitor of 1.0uF or more placed close to the IC. |
| 3 | VOUT | power_out | Regulated 5.0V output (±2%) delivering up to 300mA, with a recommended output capacitor of 0.1uF or more and a voltage limit of VIN+0.3V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| Package | SOT-89-3 |
| Category | Power Management ICs |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input Voltage | VIN | -0.3 | 8 | V | Ta=25℃ | 2 | |
| Output Voltage | VOUT | -0.3 | V | -0.3 ~ VIN+0.3V | 2 | ||
| Power Dissipation SOT89-3L | PD | 500 | mW | SOT89-3L | 2 | ||
| Operating Ambient Temperature | Topr | -40 | 85 | ℃ | 2 | ||
| Storage Temperature | Tstg | -40 | 125 | ℃ | 2 | ||
| ESD Protection HBM | ESD HBM | 6000 | V | 2 | |||
| Output Voltage (VOUT(S)≥2.0V, lower bound factor) | VOUT(S) | 0.98 | 1.02 | V | VIN=VOUT(S)+1.0V, IOUT=10mA, VOUT(S)≥2.0V; printed as VOUT(S)0.98 / VOUT(S)1.02 (multiples of VOUT(S)) | 2 | |
| Dropout Voltage | VDROP | 60 | mV | VCE=VIN, VOUT≥3V, IOUT=100mA | 2 | ||
| Line Regulation | ΔVOUT/(ΔVIN·VOUT(S)) | 0.05 | 0.1 | %/V | VOUT(S)+0.5V≤VIN=VCE≤7V, IOUT=10mA | 2 | |
| Load Regulation | ΔVOUT2 | 6 | 20 | mV | VIN=VCE=VOUT(S)+1.0V, 1mA≤IOUT≤100mA | 2 | |
| Temperature Stability | ΔVOUT/(ΔTa·VOUT(S)) | -50 | 50 | ppm/℃ | VIN=VCE=VOUT(S)+1.0V, IOUT=1mA, -40℃≤Ta≤85℃ | 2 | |
| GND Current (no load) | IGND | 0.5 | 0.9 | uA | CE=VIN, no load | 2 | |
| GND Current (100mA) | IGND | 40 | uA | CE=VIN, IOUT=100mA | 2 | ||
| Shutdown Current | ISHUT | 0.01 | 0.1 | uA | VIN=7.0V, VCE=0 | 2 | |
| Input Voltage | VIN | 1.5 | 7 | V | 2 | ||
| Maximum Output Current | IOUTMAX | 250 | 300 | mA | 2 | ||
| Current Limit | ILIM | 300 | 470 | mA | VIN=VCE=VOUT(S)+1.0V, VOUT=0.95×VOUT(S) | 2 | |
| Short Circuit Current | ISHORT | 65 | mA | VIN=VCE=VOUT(S)+1.0V, VOUT=0V | 2 | ||
| COUT Auto Discharge Resistance | RDCHG | 280 | 450 | 640 | Ω | VCE=0, VOUT=VOUT(S) | 2 |
| CE High Level Voltage | VCEH | 1 | 6 | V | 2 | ||
| CE Low Level Voltage | VCEL | 0 | 0.38 | V | 3 | ||
| CE High Level Current | ICEH | -0.1 | 0.1 | uA | VIN=6.0V, VCE=VIN | 3 | |
| CE Low Level Current | ICEL | -0.1 | 0.1 | uA | VIN=6.0V, VCE=0 | 3 | |
| Power Supply Rejection Ratio | PSRR | 60 | dB | f=10Hz, VOUT(S)=2.5V | 2 | ||
| Power Supply Rejection Ratio | PSRR | 45 | dB | f=100Hz, VOUT(S)=2.5V | 2 | ||
| Power Supply Rejection Ratio | PSRR | 25 | dB | f=1kHz, VOUT(S)=2.5V | 2 |
CAD (KiCad official)
- Symbol:
MD5150 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
md5150-etched.step/md5150-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);md5150.step/md5150.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shanghai Mingda Microelectronics datasheet (14 pp, sha256
b9016866a24d108a, retrieved 2026-10-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).